In his fifth U.S. appearance in this taut, intricately plotted series (The Fifth Woman, etc.), Swedish detective Kurt Wallander pursues a long, complex case sure to please those who like weighty police procedurals. Six weeks after three college students are murdered during a Midsummer's Eve party, their bodies hidden to prevent discovery, Wallander's secretive colleague Svedberg is found at home with half his head blown off. Wallander's persistent, occasionally brilliant, investigation points to a connection between Svedberg and the disappearance of the three young people. Soon after their bodies surface, a fourth friend, who was too sick to attend the party, is killed. More murders follow, with the exhausted, understaffed detectives just too late each time to prevent the next crime....